Discus Problem

David -

When enabling Disqus it will display correctly but I get in "logs/errors.log" the error:

[Error Code: 8] Undefined index: discat
[Date/Time: 20 May 2017 @ 10:19AM]
[Error on line 46 in file /home/XXX/blog/control/classes/class.social.php]

Then, if I blank out the short name ( "You can totally disable Disqus again by removing the short name from the settings"  ) I will get the error:

[Error Code: 8] Undefined index: disqus
[Date/Time: 20 May 2017 @ 10:20AM]
[Error on line 27 in file /home/XXX/blog/control/classes/class.social.php]

although the Disqus app is no longer displayed.